protected IacucProtocolStudyGroup getSelectedStudyGroup(
     HttpServletRequest request, IacucProtocolStudyGroupBean selectedProtocolStudyGroupBean) {
   int selectedStudyGroupIndex =
       getSelectedBeanIndex(request, BEAN_STUDY_GROUP_FIND_PARAM_START, FIND_PARAM_END);
   return selectedProtocolStudyGroupBean
       .getIacucProtocolStudyGroups()
       .get(selectedStudyGroupIndex);
 }